methyl-[(S)-1-((S)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-ylcarbamoyl)-ethyl]-carbamic acid tert-butyl ester 、
5-溴-3-(氯甲基)-1-苯并噻吩 以to afford {(S)-1-[(S)-1-(5-bromo-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-ylcarbamoyl]-ethyl}-methyl-carbamic acid tert-butyl ester (90.5 mg, 56%, light yellow solid)的产率得到{(S)-1-[(S)-1-(5-bromo-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-ylcarbamoyl]-ethyl}-methyl-carbamic acid tert-butyl ester